Machine for cleaning space bands



May 28, 1940.

o. c. HADERER ET AL MACHINE FCR CLEANING SPACE BANDS Filed Jan. 27, 2 Sheets-Sheet 1 u 5 R Y .--w l l l I IHHWLUNHII nulli T R E i.nl lllllllllllllllll ll ximd J JHJ lo MN ml N m A m W. d T T N CR A l O W T M T OW Q@ May 28, 1940- o. c. HADERER ET AL 42,202,654

MACHINE FOR CLEANING SPACE BANDS Filed Jan. 27. 1937 sheets-sheet 2 48 39 3s INVENToRs OTTO C` HADERl-:R BMANIER KLEIN gwhlmdui ATTORNEY Patented May 28, 1940 2,202,654 'MACHINE Foa .CLEANING `SPACE BANDS Otto 0. Haderer and Walter Klein, vMilwaukee, Wis., assignors, by direct and mesne assignments, 'to The "Haderer "Company, a corpora- 1 tion of Wisconsin Application .1*olaim.

=a machine lhavingthese advantages and capacil0 ties and which automatically adapts itself for cleaning space bands of different thicknesses.

Another object of the invention is to provide a space band cleaning .machine of .this character whichis simple and durable in construction, advantageously combined with Ia motor or other source of power, reliable and effective in operation, and easy and comparatively inexpensive to .manufactura vOther objects andladvantages reside Ain certain Vnovel features of the construction, arrangement and combination of parts which willbe hereinafter more fully described and particularly pointed out in the appended claim, reference being had to .the accompanying drawings forming a part of this specification, andA in which:

Figure-l is a yview intransverse vertical section taken-fon line I-'I yof Fig-ure 2;

Figure -2 yis Va View in longitudinal vertical 'section taken online2--2 of Figure 1;

Figure 3 is a view intran'sverse vertical section taken on line 3 3 of Figure 2, -with -parts being broken away for the sake of illustration;

Figure 4 isa fragmentary-sectionalview taken onlline 4-4 of Figure 3; im Figure 5 is a fragmentary view in horizontal section taken on line5-5 of vFigure'l; and

Figure 6 is a view in transverse vertical section vtaken on line A(--t of Figure 5. f

Referring to the drawings, the numeral I are threadedly connected to the housing section 2 as indicatedat 1. These bolts project through openings 8 provided in the cover section 3 of the housing and are threadedlyv engaged with nuts '9 which bear against the margins ofthe 50 openings 8 to secure the cover section 3`to the housing Section :2. .The `nuts 9 may be provided with handles I0.to facilitate their application orremoval.

'A pair ofcleaning rolls designated at II and I2 are disposed in 'thecover section of the housing. These rolls maybe constituted of hard wood, felt, or other suitable composition or material, andare yi'lxedlysecured to shafts I3 and I4, respectively. y AWhere the rolls are made of designates a'base with which one section -2 of ar 5 provided on the housing lsection 2. :Bolts I5 January-27, 1937, serial No. 122,525 v hardwood ktheir hub portions are provided with slots I5 at one side into which ,pins I fixed-in the shafts and projecting therebeyondarefitted to constrain ythe rolls to rotate with the shafts.

If thefrollers are constructed of felt their hubs are constituted of metal .sleeves yfinedly interconnected with the .body portions of the rolls and similarly slotted tto receive similar driving ypins fixed to the shafts. To hold the :rolls against displacement off the ends of the shafts retaining washers4 I'I are provided f and are fastened tor theends of the shafts bycounter- "sunk screws I8. The peripheraly portions of these vwashersoverlap rabbeted portions of the rolls.

The-shaftM is-supported for rotation about a.

`fixed axis and for this `purpose is journaled in bearing bushings I9 and 2li supported vin axed bearing structure `2| provided therefor on rthe housing sectionl (see Figure 2). A collar 22, vpinned as at `243 to the 'rearward end of the shaft i4, prevents axial movement thereof in onedirectiOn. f

InV between the `bearing bushing I9 andthe -cleaning roll I2 agear wheel-24 is keyedv to the "shaft I4 `as at 24. f A washer 25 may be proing roll I2.

The gear wheel 24 is driven by means of a drive pinion 26 -keyed 'to the :outer end of a `drive shaft 241 journaled in suitable bearings `provided therefor on the housing and coupled las at -28 tothe armaturev shaftof an yelectric. A/r'notoriiIL veniently bolted as at y3l vto the base I- Thecleaning roll II is supported for rotation land valso for bodily f movement .towardV and away *from the cleaning roll I2 sothat the machine is adapted rfor cleaning space bands of different thicknesses. In order `.tosc-support the vclean- 'ing roll :I I `andalso insure its positive drive in its various positions, it is mounted and driven in a manner which will now be described.

The rearward portion of lthe shaft I3 isroltatablysupported inv-a sleeve-like bearingfstructurel 35 of a-swingable bearing bracket assembly designated generallyfat '-36. A 'collar'.33 pinned 4`to the rearward end of shaft 35 as illustrated 'at `34 prevents axialmovement ofsaid shaft I3 jrelative toA bearingsleeve35-inon'e'direction. The bearing sleeve 35 is provided at its v-innerend "with any outwardly-projecting annular flange 3T lwhich is Ifastened by means-of screws 38 (see Figures 2 and 3) to af-carrier plate l39. The 'plate -39 has acircularlbody portion provided `withanintegral tapered-projection 40 which has an opening/40 inv which'oneendl of alshaft 4I is tted whereby `the`-carrier1plateis krotatable or swingable lrelative totheshaftflll. This shaft 14I is supportedl forfrotation in la 'bearing sleeveA 42 'ifwhich mayfbe -cast integral with `the yhousing vided between the gear wheel24 and the clean- 25 The electric motor 30 may be conshaft 4I as an axis.

rotation about a fixed axis.

as at 44 to one end of the shaft prevents axial movement thereof in one direction. To the opposite end of the shaft an idler pinion 45 is fixed. l,

way the space band is constrained against any twisting or lateral 'displacement with its head v as, for example, by means of a stud bolt 45 which extends through the central opening of the pinion and is threadedly connected with the shaft 4I as indicated at 47. The pinion 45 and collar 43 preclude axial movement of the shaft 4| in either direction and the pinion 45 and adjacent end of bearing sleeve 42 constrain the bracket assembly 35 to swinging movement about The pinion 45 meshes with a gear wheel 48 keyed as at 48 to the shaft I3 and interposed between the carrier plate 39 and a'washer 50, the washer 55 in turn being interposed between one face of the gear wheel 48 and the cleaning roll II. The idler pinion 40 not only meshes with the gear wheel 48 but also with the drive pinion 26 as shown in Figure 3. The housing section 2 is provided with an elongated or slot-like opening 5| to provide the clearance necessary to accommodate the bodily movement of the bearing sleeve 35. o

With this construction, the drive pinion 26 not only drives the gear wheel 24 and its shaft I4 but also the idler pinion 45 which, in turn, rotates the gear wheel 48 and consequently the shaft I3. The bearing bracket 36 so supports the gear wheel 48 and the cleaning roll II that if the cleaning roll II moves toward or away from the roll I2 to accommodate space bands of various thicknesses, the gear wheel 48 will roll around the idler pinion 45 so that the transmission of the drive to the gear wheel 48 and cleaning roller II will not be impaired in the various relative positions of their parts. This action is due to the mounting of the bearing bracket 35 for swinging movement about the axis of rotation'of the idler pinion 45. f

For the purpose of resiliently or yieldingly pressing the cleaning roll II into rolling contact with the cleaning roll I 2, the carrier plate 39 is provided with a socket 55 receiving one end of` a compression coil spring 56. The other end of this spring ts over the reduced inner end of an adjusting screw 5'I threadedly intertted with an internally threaded bearing 58 provided on the housing and having a shoulder 59 against which one end of the spring 56 abuts. By adjusting the screw 5l the extent to which the spring 56 is compressed may be varied and as a consequence the force with which the cleaning roll vII is pressed against the cleaning roll I2 may be varied.

The housing I-I and preferably the cover section 3 thereof is provided with means for feeding the space bands B to the nip of the cleaning rolls II and I2 and may also be provided with guide means for conveying the bands away from the rolls to a point of deposit. For this purpose the housing section 3 is provided with an opening 60 opposite the nip of the rolls and overlying a feed guide designated generally at 6 I'. 'I'he guide-way is provided with ribs 62 along its sides which define a restricted throat or entrance-way 63 to the guide. Inwardly of the wall of the housing and adjacent the nip of the rolls these ribs are cut away as at 64 to enlarge the guide-way and adapt it to allow the head of the space band to drop thereinto. The space band is designated generally at B and hasa shank` s and the conventional head brintertted with the shank in the usual way. When a` space band is to be cleaned its head is slid along the top of the rib 62 until it -overlies the cut-,away portion 64 of the guides.

The space band then drops down so that the side edges of its shank sare slidably interfitted with the inner faces of the guide ribs 62. In this and is engaged and gripped by the cleaning rolls. Any twisting or distortion thereof is effectively prevented. During its passage through the rolls the head of the band is cleaned of any deposits of lead or foreign matter and this may result simply from its passage between the rolls or by the 0perator pulling backward on the band intermittently as it is gripped and acted upon by the rolls.

'I3 and 14, respectively, and their position may f .be accurately determined by gauge collars 15 and 'I6 releasably secured to the strips by set screws 'I1 and 18, respectively. The deflector strip 'HJ has a downwardly inclined portion 80 which engages the heads of the space bands to deflect them down onto the upwardly inclined end portions 8| of the hanger strip 'II. The space bands then slide down the strip-'II to the position shown in dotted lines. l. Obviously, other means may be provided for receiving or stacking the strips after they have passed through the machine.

In the use of the device a suitable quantity of graphite is provided in the cover section of the housing. to augment the cleaning action of the surfaces of the rolls. When the operator releases a space band gripped between the rolls the rolls will carry the band through their nip at an increased speed and out through the ejection guide of the housing. As they are projected from the ejection guide they engage the deector strip 'I0 and the upwardly inclined portions 8| of the hanger strip 'II enter the slots of the space band which then slide down the inclined hanger strip to the position vshown in dotted lines.

While We have shown and described one construction in which the invention may be advantageously embodied, it is to be understood that this construction has been selected merely for ment of the parts may be made Without departthe purpose of illustration or example, and that y., various changes in the size, shape and arrangeing from the spirit of the invention or the scope 

